77788650530066 has 8 divisors (see below), whose sum is σ = 133351972337280. Its totient is φ = 33337993084308.

The previous prime is 77788650529907. The next prime is 77788650530081. The reversal of 77788650530066 is 66003505688777.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 77788650529978 and 77788650530005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2778166090346 + ... + 2778166090373.

It is an arithmetic number, because the mean of its divisors is an integer number (16668996542160).

Almost surely, 2^{77788650530066} is an apocalyptic number.

77788650530066 is a deficient number, since it is larger than the sum of its proper divisors (55563321807214).

77788650530066 is a wasteful number, since it uses less digits than its factorization.

77788650530066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556332180728.

The product of its (nonzero) digits is 355622400, while the sum is 68.

The spelling of 77788650530066 in words is "seventy-seven trillion, seven hundred eighty-eight billion, six hundred fifty million, five hundred thirty thousand, sixty-six".